mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-25 17:10:23 +00:00
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#ifdef __serenity__
|
|
|
|
#include <AK/RefCounted.h>
|
|
#include <AK/RefPtr.h>
|
|
|
|
namespace AK {
|
|
|
|
class SharedBuffer : public RefCounted<SharedBuffer> {
|
|
public:
|
|
static RefPtr<SharedBuffer> create_with_size(int);
|
|
static RefPtr<SharedBuffer> create_from_shared_buffer_id(int);
|
|
~SharedBuffer();
|
|
|
|
bool share_globally();
|
|
bool share_with(pid_t);
|
|
int shared_buffer_id() const { return m_shared_buffer_id; }
|
|
void seal();
|
|
int size() const { return m_size; }
|
|
void* data() { return m_data; }
|
|
const void* data() const { return m_data; }
|
|
void set_volatile();
|
|
[[nodiscard]] bool set_nonvolatile();
|
|
|
|
private:
|
|
SharedBuffer(int shared_buffer_id, int size, void*);
|
|
|
|
int m_shared_buffer_id { -1 };
|
|
int m_size { 0 };
|
|
void* m_data;
|
|
};
|
|
|
|
}
|
|
|
|
using AK::SharedBuffer;
|
|
|
|
#endif
|